It is worth reminding that this is a list of relative importance of the identified factors - Nothing on this list should be considered as unimportant in the success of an IT project, but rather the weighting is a reflection of relative importance within these factors alone. It should be noted too that none of these factors are methodology specific - Indeed some of these success factors have been identified by other contributors to this thread and are consistent across not only software development methodologies, but also distinct project management and risk management methodologies.